I'm sorry I hadn't tested this before on XE - it was the workaround suggested by MOS to solve that problem. Unfortunately, I couldn't find any xsl on my 11.2 XEs either. It seems to be some missing part similar to a few others reported in the beta forum, e.g. {thread:id=2204216}, {thread:id=2217556}
I had expected these missing parts to be there in the final release, but apparently, there are still some gaps.
So the only option left for the moment would be, as suggested by Etore, to take it from some other 11.2 release.

-Udo

P.S.:

So i can install 11gR2 with a test installation on WIN7 64b without having a license?

The OTN license allows you to install any release for evaluation and development purposes.

I'd try to put them into the path without running the configure again, but just issue the command to load the stylesheets. If this doesn't work something else is missing and it probably wouldn't be worth the effort to start over with the whole instance...